Refrigerant Line Length Ft Unit Size Ton

Refrigerant Line Sizing

Check the following table (Table 3) for correct suction and liquid line sizes for any combination of the unit size and the maximum refrigerant line length.

		Refrigerant Line Length (Ft)
Unit Size	0 - 24		25 - 49		50 - 74
(Ton)			Line Outside Diameter (In)				SEER
	Suction	Liquid	Suction	Liquid	Suction	Liquid
1.5	3/4	3/8	3/4	3/8	7/8	1/2	13
2.0	3/4	3/8	3/4	3/8	7/8	1/2	13
2.5	3/4	3/8	3/4	3/8	7/8	1/2	13

3.0

7/8

3/8

1 1/8

3/8

1 1/8

1/2

Table 3:Refrigerant Line Sizing

The factory charge is sufficient for 25 feet of standard liquid line. For longer or shorter liquid line lengths, adjust the charge as follows:

1/4" Line	+/- 0.3 oz. Per foot
5/16" Line	+/- 0.4 oz. Per foot
3/8" Line	+/- 0.6 oz. Per foot
1/2" Line	+/- 1.2 oz. Per foot.

Vertical Separation between Indoor and Outdoor Units

Maximum allowable vertical separations between indoor and outdoor units are illustrated in Figure

4-A and Figure 4-B. It's 70' when the indoor unit is below the outdoor unit (Figure 4-A), and 50' when the indoor unit is above the outdoor unit (Figure 4-B).

To ensure good oil return to the compressor when the indoor unit is below the outdoor unit, suction line oil trap should be used as illustrated in Figure 4-A.

Tubing Connections

!CAUTION - Use extreme caution in removing the caps from the suction and liquid line fittings, as there is pressure present. A fitting is on the liquid line to remove pressure.

!CAUTION - Heat Pumps are charged with refrigerant. Heat Pump liquid and suction valves are closed to contain the charge within the unit. Do not force the valve stem against the retaining ring. If the valve stem is backed out past the retaining ring, system pressure could force the valve stem out of the valve body and possibly cause personal injury.

!CAUTION - The piston is in the accessory bag. Don't forget to take it out and put into the indoor liquid pipe orifice.

Instructions on the field tubing connections and valve opening procedure are as follow:

HR24D2VAR, HR36D2VAR, HR18D2VAR, HR30D2VAR specifications

Haier, a globally recognized brand in home appliances, has developed a line of air conditioning units that includes the HR30D2VAR, HR18D2VAR, HR36D2VAR, and HR24D2VAR models. These units are designed to deliver optimal comfort and energy efficiency for both residential and commercial spaces.

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The HR series models are equipped with multiple cooling modes, allowing users to select the most appropriate setting based on their comfort needs. Whether it's a hot summer day or a mild evening, users can tailor the temperature to their liking. Additionally, the models come with a sleep mode that gradually adjusts the temperature, providing a comfortable sleeping environment while saving energy.

Another significant characteristic of these air conditioners is their energy efficiency ratings. Many of the HR series units boast high SEER (Seasonal Energy Efficiency Ratio) ratings, indicating their effectiveness in cooling while minimizing electricity consumption. This is particularly beneficial for environmentally conscious consumers looking to reduce their carbon footprint.

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Connectivity is another feature that enhances user experience. Many of the Haier air conditioning units in this series come with smart technology compatibility, allowing users to control their air conditioner through their smartphone or smart home systems. This remote control capability enables adjustments even when users are away from home, providing convenience and energy management.

In summary, the Haier HR30D2VAR, HR18D2VAR, HR36D2VAR, and HR24D2VAR air conditioners combine advanced technologies such as inverter operation, high energy efficiency, robust filtration systems, and smart connectivity. These features make them suitable for a variety of settings, ensuring comfort and ease of use for homeowners and businesses alike.

Refrigerant Line Sizing